Hi Gregor, Thanks for working on this. Unfortunately it is a bit complex.
On 1/11/2015 2:25 PM, Gregor Jasny wrote: > The current approach to determine the CompilerId via > an XCTest bundle on iOS requires a valid code sign identity. All the subsequent try_compile calls, including ABI detection, currently require a signing identity too. An approach to overcome that (CODE_SIGNING_REQUIRED) is mentioned here: http://www.cmake.org/Bug/view.php?id=15329 I've made a change using that approach here: Xcode: Do not require code signing for compiler id (#15329) http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=584aaa1c That also discusses the need to use a different product type for try_compile calls too. For those linking is needed so we cannot use static libraries. Selection has to be specific to the target platform. > This is a regression compared to CMake 3.0. This patch changes > the detection to be performed on a static library and also > unifies detection across iOS and OSX. As explained in http://www.cmake.org/Bug/view.php?id=15214#c37064 3.0 only detected the host OS X compiler. > - # Ld ... > + # CompileC ... Some versions of Xcode do not actually print the compilation command line with the full path to the correct compiler tool. For example with C++ it may compile with the path to the C compiler and use "-x c++". That's why we have to use Ld, and therefore need a product type that links. I really wish there were another way to detect the path to the compiler tool that Xcode invokes :( -Brad -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake-developers
